Can't change UINavigationBar prompt color

Question

I am unable to change the prompt color on my navigation bar. I\'ve tried the code below in viewDidLoad, but nothing happens.

self.navigationCont         


        

Answer 1

I've found next work around for iOS 11. You need set at viewDidLoad navigationItem.prompt = UINavigationController.fakeUniqueText and after that put next thing

    navigationController?.promptLabel(completion: { label in
    label?.textColor = .white
    label?.font = Font.regularFont(size: .p12)
        })

    extension UINavigationController {
    public static let fakeUniqueText = "\n\n\n\n\n"
    func promptLabel(completion: @escaping (UILabel?) -> Void) {
        gloabalThread(after: 0.5) { [weak self] in
            guard let `self` = self else {
                return
            }
            let label = self.findPromptLabel(at: self.navigationBar)
            mainThread {
                completion(label)
            }
        }
    }

    func findPromptLabel(at view: UIView) -> UILabel? {
        if let label = view as? UILabel {
            if label.text == UINavigationController.fakeUniqueText {
                return label
            }
        }
        var label: UILabel?
        view.subviews.forEach { subview in
            if let promptLabel = findPromptLabel(at: subview) {
                label = promptLabel
            }
        }
        return label
    }
    }


    public func mainThread(_ completion: @escaping SimpleCompletion) {
        DispatchQueue.main.async(execute: completion)
    }


    public func gloabalThread(after: Double, completion: @escaping SimpleCompletion) {
       DispatchQueue.global().asyncAfter(deadline: .now() + after) {
       completion()
    }
}